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[tor-commits] [tor/master] Extract threading code into a new library.
commit 9cf335c9a5fe6767e90cc5cfdc1f5c95465edb10
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date: Thu Jun 28 09:14:42 2018 -0400
Extract threading code into a new library.
Note that the workqueue code does *not* go here: it is logically at
a higher level, since it needs to use libevent and the networking
stack.
---
.gitignore | 2 ++
Makefile.am | 2 ++
src/common/compat.h | 2 +-
src/common/include.am | 10 ---------
src/common/workqueue.c | 2 +-
src/include.am | 1 +
src/lib/thread/.may_include | 6 ++++++
src/{common => lib/thread}/compat_pthreads.c | 11 ++++++----
src/{common => lib/thread}/compat_threads.c | 5 ++---
src/{common => lib/thread}/compat_winthreads.c | 5 +++--
src/lib/thread/include.am | 25 ++++++++++++++++++++++
.../compat_threads.h => lib/thread/threads.h} | 2 ++
src/rust/build.rs | 1 +
src/test/test_threads.c | 2 +-
src/test/test_workqueue.c | 2 +-
15 files changed, 55 insertions(+), 23 deletions(-)
diff --git a/.gitignore b/.gitignore
index 5198daf4f..65c9fb83f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -195,6 +195,8 @@ uptime-*.json
/src/lib/libtor-string-testing.a
/src/lib/libtor-smartlist-core.a
/src/lib/libtor-smartlist-core-testing.a
+/src/lib/libtor-thread.a
+/src/lib/libtor-thread-testing.a
/src/lib/libtor-tls.a
/src/lib/libtor-tls-testing.a
/src/lib/libtor-trace.a
diff --git a/Makefile.am b/Makefile.am
index c016310a6..be645194a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -45,6 +45,7 @@ TOR_UTIL_LIBS = \
src/lib/libtor-sandbox.a \
src/lib/libtor-container.a \
src/lib/libtor-net.a \
+ src/lib/libtor-thread.a \
src/lib/libtor-log.a \
src/lib/libtor-lock.a \
src/lib/libtor-fdio.a \
@@ -65,6 +66,7 @@ TOR_UTIL_TESTING_LIBS = \
src/lib/libtor-sandbox-testing.a \
src/lib/libtor-container-testing.a \
src/lib/libtor-net-testing.a \
+ src/lib/libtor-thread-testing.a \
src/lib/libtor-log-testing.a \
src/lib/libtor-lock-testing.a \
src/lib/libtor-fdio-testing.a \
diff --git a/src/common/compat.h b/src/common/compat.h
index 95447d3b8..574dc5720 100644
--- a/src/common/compat.h
+++ b/src/common/compat.h
@@ -190,6 +190,6 @@ int tor_mlockall(void);
ssize_t tor_getpass(const char *prompt, char *output, size_t buflen);
/* This needs some of the declarations above so we include it here. */
-#include "common/compat_threads.h"
+#include "lib/thread/threads.h"
#endif /* !defined(TOR_COMPAT_H) */
diff --git a/src/common/include.am b/src/common/include.am
index 14e7dcb9f..9ed5b30d3 100644
--- a/src/common/include.am
+++ b/src/common/include.am
@@ -17,13 +17,6 @@ else
libor_extra_source=
endif
-if THREADS_PTHREADS
-threads_impl_source=src/common/compat_pthreads.c
-endif
-if THREADS_WIN32
-threads_impl_source=src/common/compat_winthreads.c
-endif
-
if BUILD_READPASSPHRASE_C
readpassphrase_source=src/ext/readpassphrase.c
else
@@ -34,7 +27,6 @@ LIBOR_A_SRC = \
src/common/address_set.c \
src/common/buffers.c \
src/common/compat.c \
- src/common/compat_threads.c \
src/common/compat_time.c \
src/common/conffile.c \
src/common/memarea.c \
@@ -44,7 +36,6 @@ LIBOR_A_SRC = \
src/common/token_bucket.c \
src/common/workqueue.c \
$(libor_extra_source) \
- $(threads_impl_source) \
$(readpassphrase_source)
src/common/src_common_libor_testing_a-log.$(OBJEXT) \
@@ -77,7 +68,6 @@ COMMONHEADERS = \
src/common/buffers.h \
src/common/compat.h \
src/common/compat_libevent.h \
- src/common/compat_threads.h \
src/common/compat_time.h \
src/common/conffile.h \
src/common/handles.h \
diff --git a/src/common/workqueue.c b/src/common/workqueue.c
index fd31ccd7f..4735aadd7 100644
--- a/src/common/workqueue.c
+++ b/src/common/workqueue.c
@@ -26,7 +26,7 @@
#include "orconfig.h"
#include "common/compat.h"
#include "common/compat_libevent.h"
-#include "common/compat_threads.h"
+#include "lib/thread/threads.h"
#include "lib/crypt_ops/crypto_rand.h"
#include "common/util.h"
#include "common/workqueue.h"
diff --git a/src/include.am b/src/include.am
index c83ec0d57..0a8af38b0 100644
--- a/src/include.am
+++ b/src/include.am
@@ -20,6 +20,7 @@ include src/lib/sandbox/include.am
include src/lib/string/include.am
include src/lib/smartlist_core/include.am
include src/lib/testsupport/include.am
+include src/lib/thread/include.am
include src/lib/tls/include.am
include src/lib/trace/include.am
include src/lib/wallclock/include.am
diff --git a/src/lib/thread/.may_include b/src/lib/thread/.may_include
new file mode 100644
index 000000000..93ad0cd73
--- /dev/null
+++ b/src/lib/thread/.may_include
@@ -0,0 +1,6 @@
+orconfig.h
+lib/cc/*.h
+lib/lock/*.h
+lib/log/*.h
+lib/testsupport/*.h
+lib/thread/*.h
diff --git a/src/common/compat_pthreads.c b/src/lib/thread/compat_pthreads.c
similarity index 98%
rename from src/common/compat_pthreads.c
rename to src/lib/thread/compat_pthreads.c
index e345cfef0..246c6254b 100644
--- a/src/common/compat_pthreads.c
+++ b/src/lib/thread/compat_pthreads.c
@@ -11,13 +11,16 @@
*/
#include "orconfig.h"
+#include "lib/thread/threads.h"
+#include "lib/log/torlog.h"
+#include "lib/log/util_bug.h"
+
+#include <sys/time.h>
#include <pthread.h>
#include <signal.h>
#include <time.h>
-
-#include "common/compat.h"
-#include "lib/log/torlog.h"
-#include "common/util.h"
+#include <errno.h>
+#include <string.h>
/** Wraps a void (*)(void*) function and its argument so we can
* invoke them in a way pthreads would expect.
diff --git a/src/common/compat_threads.c b/src/lib/thread/compat_threads.c
similarity index 96%
rename from src/common/compat_threads.c
rename to src/lib/thread/compat_threads.c
index 87833c6cf..1d685b2c3 100644
--- a/src/common/compat_threads.c
+++ b/src/lib/thread/compat_threads.c
@@ -13,11 +13,10 @@
#include "orconfig.h"
#include <stdlib.h>
-#include "common/compat.h"
-#include "common/compat_threads.h"
+#include "lib/thread/threads.h"
-#include "common/util.h"
#include "lib/log/torlog.h"
+#include "lib/log/util_bug.h"
/** Allocate and return a new condition variable. */
tor_cond_t *
diff --git a/src/common/compat_winthreads.c b/src/lib/thread/compat_winthreads.c
similarity index 98%
rename from src/common/compat_winthreads.c
rename to src/lib/thread/compat_winthreads.c
index d082af31c..7f9877d21 100644
--- a/src/common/compat_winthreads.c
+++ b/src/lib/thread/compat_winthreads.c
@@ -12,11 +12,12 @@
#ifdef _WIN32
-#include "common/compat.h"
#include <windows.h>
#include <process.h>
-#include "common/util.h"
+#include "lib/thread/threads.h"
#include "lib/log/torlog.h"
+#include "lib/log/util_bug.h"
+#include "lib/log/win32err.h"
/* This value is more or less total cargo-cult */
#define SPIN_COUNT 2000
diff --git a/src/lib/thread/include.am b/src/lib/thread/include.am
new file mode 100644
index 000000000..0eac7edee
--- /dev/null
+++ b/src/lib/thread/include.am
@@ -0,0 +1,25 @@
+
+noinst_LIBRARIES += src/lib/libtor-thread.a
+
+if UNITTESTS_ENABLED
+noinst_LIBRARIES += src/lib/libtor-thread-testing.a
+endif
+
+if THREADS_PTHREADS
+threads_impl_source=src/lib/thread/compat_pthreads.c
+endif
+if THREADS_WIN32
+threads_impl_source=src/lib/thread/compat_winthreads.c
+endif
+
+src_lib_libtor_thread_a_SOURCES = \
+ src/lib/thread/compat_threads.c \
+ $(threads_impl_source)
+
+src_lib_libtor_thread_testing_a_SOURCES = \
+ $(src_lib_libtor_thread_a_SOURCES)
+src_lib_libtor_thread_testing_a_CPPFLAGS = $(AM_CPPFLAGS) $(TEST_CPPFLAGS)
+src_lib_libtor_thread_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
+
+noinst_HEADERS += \
+ src/lib/thread/threads.h
diff --git a/src/common/compat_threads.h b/src/lib/thread/threads.h
similarity index 99%
rename from src/common/compat_threads.h
rename to src/lib/thread/threads.h
index 69350421b..fcccc643d 100644
--- a/src/common/compat_threads.h
+++ b/src/lib/thread/threads.h
@@ -15,6 +15,8 @@
#include <stdatomic.h>
#endif
+struct timeval;
+
int spawn_func(void (*func)(void *), void *data);
void spawn_exit(void) ATTR_NORETURN;
diff --git a/src/rust/build.rs b/src/rust/build.rs
index 36f847d2e..e17f9e5df 100644
--- a/src/rust/build.rs
+++ b/src/rust/build.rs
@@ -154,6 +154,7 @@ pub fn main() {
cfg.component("tor-sandbox");
cfg.component("tor-encoding-testing");
cfg.component("tor-net");
+ cfg.component("tor-thread-testing");
cfg.component("tor-log");
cfg.component("tor-lock");
cfg.component("tor-fdio");
diff --git a/src/test/test_threads.c b/src/test/test_threads.c
index 11f41a044..e698e4f61 100644
--- a/src/test/test_threads.c
+++ b/src/test/test_threads.c
@@ -5,7 +5,7 @@
#include "orconfig.h"
#include "or/or.h"
-#include "common/compat_threads.h"
+#include "lib/thread/threads.h"
#include "test/test.h"
/** mutex for thread test to stop the threads hitting data at the same time. */
diff --git a/src/test/test_workqueue.c b/src/test/test_workqueue.c
index 7c525aa28..5cda99b58 100644
--- a/src/test/test_workqueue.c
+++ b/src/test/test_workqueue.c
@@ -4,7 +4,7 @@
/* See LICENSE for licensing information */
#include "or/or.h"
-#include "common/compat_threads.h"
+#include "lib/thread/threads.h"
#include "or/onion.h"
#include "common/workqueue.h"
#include "lib/crypt_ops/crypto_curve25519.h"
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